How long is a dog's pregnancy?

Dog pregnancy (gestation) lasts approximately 63 days (9 weeks) from conception, with a normal range of 58-68 days. Most dogs whelp (give birth) between days 58-65. The variability exists because ovulation timing relative to breeding varies, and some breeds or individual dogs may have slightly shorter or longer gestations. Count from the breeding date, but be prepared a few days early or late.

How do you calculate a dog's due date?

Add 63 days to the breeding date to estimate the due date. If multiple breeding occurred over several days, use the middle date or first breeding as the reference point. For example, if breeding occurred on January 1st, the estimated due date is March 5th. Veterinarians can provide more precise estimates using ultrasound (to date pregnancy) or progesterone testing (to pinpoint ovulation).

What are signs that a dog is about to give birth?

Signs of imminent labor include: temperature drop below 100°F (12-24 hours before), nesting behavior, restlessness, loss of appetite, panting, shivering, seeking seclusion, and visible abdominal contractions. Some dogs become very affectionate while others want to be alone. Have your veterinarian's emergency number ready, and prepare a clean, quiet whelping area with towels and supplies.

Can you tell how many puppies a dog will have?

The most accurate method is ultrasound (after day 28) or X-ray (after day 45 when skeletal structures are visible). X-rays are most reliable for counting puppies. Ultrasound is better for confirming pregnancy and checking viability but may miss puppies. Litter size varies by breed, age, and genetics. First-time mothers often have smaller litters than experienced mothers.

When should a pregnant dog see a vet?

Schedule a veterinary visit within 2-3 weeks of suspected breeding to confirm pregnancy (via ultrasound at 25-28 days). Have a check-up around day 45 for X-rays to count puppies and assess their size/position. Contact your vet immediately if you notice unusual discharge, lethargy, loss of appetite, vomiting, fever, or any concerning symptoms. Plan for veterinary availability during the due date window.

Everyday

Dog Pregnancy Calculator

Calculate your dog's due date based on the breeding date.

Breeding Date

How to Use This Calculator

Enter Breeding Date

Input the date when breeding occurred. If breeding happened over multiple days, use the first breeding date or the midpoint of the breeding window.

View Due Date

The calculator adds 63 days to show the estimated due date. Note that normal delivery can occur 58-68 days after breeding.

Review Pregnancy Timeline

See key pregnancy milestones: when to expect heartbeats (day 25), when to schedule ultrasound (day 28), when puppies are visible on X-ray (day 45), and preparation timeline.

Prepare for Whelping

Use the due date to plan veterinary check-ups, prepare a whelping box, gather supplies, and ensure you're available or have help during the expected delivery window.